<template>
    <el-row class="login-container">
        <el-col :lg="16" :md="12" class="left">
            <div>
                <div>欢迎光临</div>
                <div>vue3商城后台管理系统</div>
            </div>
        </el-col>
        <el-col :lg="8" :md="12" class="right">
            <h2 class="title">欢迎回来</h2>
            <div>
                <span class="line"></span>
                <span>账号密码登录</span>
                <span class="line"></span>
            </div>
            <el-form :model="form" class="w-[250px]" :rules="rules" ref="formRef">
                <el-form-item prop="username">
                    <el-input v-model="form.username" placeholder="请输入用户名">
                        <template #prefix>
                            <el-icon class="el-input__icon"><el-icon>
                                    <User />
                                </el-icon></el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="form.password" placeholder="请输入密码" show-password type="password">
                        <template #prefix>
                            <el-icon class="el-input__icon"><el-icon>
                                    <Lock />
                                </el-icon></el-icon>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" class="w-[250px]" round color="#626aef" @click="onSubmit" :loading="loading">登录</el-button>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<script setup>
import { reactive, ref ,onMounted,onBeforeMount} from "vue";
import { useRouter } from 'vue-router'; 
import { toast } from '~/composables/util.js'
import { useStore } from 'vuex'
const router = useRouter();
const store = useStore();
// do not use same name with ref
const form = reactive({
    username: "",
    password: "",
});

const rules = {
    username: [
        { required: true, message: '用户名不能为空', trigger: 'blur' },
    ],
    password: [
        { required: true, message: '密码不能为空', trigger: 'blur' },
    ]
}
const formRef = ref(null);
const loading = ref(false);
const onSubmit = () => {
    formRef.value.validate((valid) => {
        if (!valid) {
            return false;
        }
        loading.value = true;
        store.dispatch('login',form).then(res=>{
            toast("登录成功");
            router.push("/");
        }).finally(() => {
                loading.value = false;
            })
    })
};
//监听回车事件
function onKeyUp(e){
    if(e.key == "Enter"){
        onSubmit();
    }
}
//添加键盘的监听
onMounted(() => {
    document.addEventListener("keyup",onKeyUp)
})
//移除键盘监听
onBeforeMount(()=>{
    document.removeEventListener("keyup",onKeyUp)
})
</script>

<style scoped>
.login-container {
    @apply bg-indigo-500 min-h-screen;
}

.login-container .left,
.login-container .right {
    @apply flex items-center justify-center;
}

.login-container .right {
    @apply bg-blue-50 flex-col;
}

.left>div>div:first-child {
    @apply font-bold text-6xl text-light-50 mb-4;
}

.left>div>div:last-child {
    @apply text-light-200 text-sm;
}

.right .title {
    @apply font-bold text-3xl text-gray-800;
}

.right>div {
    @apply flex items-center justify-center my-5 text-gray-300 space-x-2;
}

.right .line {
    @apply h-[1px] w-16 bg-gray-200;
}
</style>
